The principle of measuring the flow of current through the body (impedance) is dependent on the frequency applied. At low frequencies, the current cannot bridge the cellular membrane and will pass predominantly through the extra-cellular space.

At higher frequencies penetration of the cell membrane occurs and the current is conducted by both the extra-cellular water (ECW) and intra-cellular water (ICW).

By measuring the impedance at 5 kHz and 200 kHz and by applying predictive equations, it is possible to estimate both ECW and TBW (Total Body Water) respectively and by deduction, ICW. ECW can be related to Extra-Cellular Mass and ICW to Body Cell Mass.

By measuring the impedance at 50 kHz and applying the unique Bodystat equation Body Fat, Lean Mass and Dry Lean Mass can be assessed. The QuadScan 4000 contains separate Body Composition equations for Children 6 years and over and Adults. In addition the QuadScan 4000 measures at 100 kHz.

Total body weight, height, age and gender are required by the predictive equations used in the hardware unit to display the results on the LCD screen. Where it is impractical to determine weight, as in the case of certain hospitalised patients, alternative equations can be applied in the QuadScan 4000 program to calculate ICW, ECW and TBW.

Whole Body analysis, rather than partial body analysis of arms or legs only, is measured for greater accuracy. In addition, alternative equations provide for the proximal placement of electrodes on sternum and knee to potentially monitor more sensitively the changes in fluid levels in the trunk area.

The strategic placement of electrodes on the chest area could provide for the monitoring of change in impedance values (hence fluid shifts) in the left and right lung individually.

The QuadScan 4000 measures/calculates

ECW % and ECW Volume*

ICW% and ICW Volume*

TBW % and TBW*

3rd Space Water*

Body Cell Mass*

ECW/TBW Nutrition Index*

Plus Normal % Levels

Body Fat % and Fat Weight*

Body Lean Mass *

Dry Lean Mass *

Basal Metabolic Rate (BMR)*

BMR/Body Weight

Average Daily Calorie Requirement*

Waist/Hip Ratio

Body Mass Index - Plus Normal Range

Body Fat Mass Index (BFMI)* *NEW*

Fat Free Mass Index (FFMI)* *NEW*

Impedance Index *NEW*

Impedance Values at 5, 50, 100 and 200 kHz

Resistance 50 kHz *NEW*

Reactance 50 kHz *NEW*

Phase Angle 50 kHz *NEW*

* Estimate

QuadScan 4000 Software for Windows
The Body Composition Data is instantly downloaded directly from the QuadScan 4000 using Bluetooth technology. This saves time and eliminates the risk of error inherent in re-keying subject data.

The main program features include:

Body Composition Analysis in a 2-page summary report.

Trend Report, enables a user to track lean/fat ratios, fluid levels and impedance values over a period of time. The user can also track changes in Blood Pressure, Cholesterol, Waist to Hip, Heart Rate and Lung Function.

Weight & Activity Manager, allows a user to develop a series of exercises in order to calculate the amount of kilocalories these will burn This adjustment may then be incorporated into a user's own diet program. The number of weeks to achieve goal weight is automatically determined.

Cardiac Risk Analysis, assessment of health status relating to lifestyle. Factors include exercise levels, smoking, blood pressure, family history, etc. The screen immediately displays the effects of potential lifestyle changes e.g. if a subject smokes 20 cigarettes a day and they agree to reduce their smoking to 5 cigarettes a day the impact on their Cardiac Risk can be seen immediately on the screen.

Alternative Equations, these are available for competitive athletes, children 6 years and over and geriatrics and may be selected as required by the user to determine % fat and lean muscle levels. Alternative metabolic formulae are also included and the user has the option to select their own % fat ranges.

TBW, ECW and ICW Trend Reports, these reports enable the user to track the changes in a patient's hydration status and body cell mass.

Features

Multi-frequency BIA unit with Bluetooth for PC communication

Segmental measurements possible using Impedance Index concept

Safe and Non-invasive

Easy to use

Lightweight and portable

QuadScan 4000 Software

Built-in automatic calibration

Test results available within seconds

Battery operated

High contrast, 2 line LCD display

Automatic 100 test counter

Subject data recall

Actual results & recommended ranges

Low battery alarm system

12 month Parts and Labor Warranty on a return to factory basis

Accepts metric or imperial units

Quality approved: CE 0120 Medical Devices Directive and FDA

Available in English, French, German, Italian, Portuguese and Spanish

Benefits

Non-invasive assessment of hydration and nutrition status

Assess nutritional status of patients on admission and pre-surgery

Monitor the Impedance Index during hospitalisation - without the need to weigh the patient and irrespective of age, weight, population group *NEW*

Monitor Lean Body Mass, rather than Total Body Weight to determine the patient's response to nutritional supplements

Determine if weight gain is due to increase in Lean Body Mass or fluid retention

Able to monitor hydration status

Test can be performed at the bedside, versus other more complicated and expensive methods

Quick corrective action can be taken to improve the health of the patient

Ease of use allows for regular monitoring of status as frequently as required (minutes, hours, days, etc)

Quick, reliable, cost-effective, reproducible results

Far more informative than BMI
Number of measurement parameters can be selected to meet specific needs

12 month Parts and Labor Warranty on a return to factory basis (excludes lead wires)

TESTIMONIAL

"The use of Bodystat Quadscan has changed the paradigm of so called weight loss and instead focused our attention on the main core issue of redistributing fat and muscle by analyzing the body composition. My patients have a completely new outlook in terms of the concept of weight and wellness. Bodystat Quadscan is such an easy tool to measure body composition and provide the patients with regular objective measurements that they can see and analyze over a period of time. My patients who range from obese to athletes have benefited tremendously from the use of this machine. I cannot imagine doing what I do without the use of this tool".